Threat Database Trojans Trojan.Kryptik.NRT

Trojan.Kryptik.NRT

By CagedTech in Trojans

Threat Scorecard

Threat Level: 80 % (High)
Infected Computers: 8
First Seen: September 1, 2025
Last Seen: December 5, 2025
OS(es) Affected: Windows

The detection of Trojan.Kryptik.NRT on your system indicates a potential security threat that requires immediate attention. This report aims to provide you with a comprehensive understanding of the threat, its operational mechanisms, symptoms of infection, and most importantly, guidance on how to remove it from your system.

What Is Trojan.Kryptik.NRT?

Trojan.Kryptik.NRT is identified as a Trojan-type threat. Trojans are malicious programs that can sneak onto your computer and perform a variety of harmful actions. They are often disguised as legitimate software but are designed to allow unauthorized access to your computer, steal sensitive information, or disrupt system operations. The name suggests it might involve encryption or stealthy operations, but without specific details, it's crucial to approach removal with a broad strategy to ensure all potential aspects of the threat are addressed.

How Trojan.Kryptik.NRT Operates

Trojan-type threats like Trojan.Kryptik.NRT typically operate by exploiting vulnerabilities in software or human error to gain access to a system. Once inside, they can create backdoors for remote access, steal personal data, install additional malware, or disrupt system performance. These threats can be particularly dangerous because they often masquerade as useful applications or are embedded in seemingly harmless files, making them difficult to detect without proper security tools.

Symptoms of Infection

Symptoms of a Trojan infection can vary widely but may include unexpected changes to your system settings, unusual network activity, slow system performance, frequent crashes, or the appearance of unwanted programs or toolbars. In some cases, there may be no noticeable symptoms at all, which is why regular system scans with reputable security software are essential for detecting and removing such threats.

How to Remove Trojan.Kryptik.NRT

  1. Boot your computer into Safe Mode with Networking. This will limit the threat's ability to operate and provide a safer environment for removal.
  2. Perform a full scan of your system using a reputable anti-malware tool, such as SpyHunter. Ensure your security software is updated with the latest definitions to improve detection capabilities.
  3. Uninstall suspicious programs that you do not recognize or that were installed around the time you suspect the infection occurred. Be cautious and only remove programs you are certain are not needed.
  4. Reset your web browsers (Chrome, Firefox, Edge, etc.) to their default settings. This can help remove any malicious extensions or settings changes made by the Trojan.
  5. After completing the above steps, reboot your computer and perform another full scan to ensure the threat has been completely removed.

Conclusion

Removing a Trojan-type threat like Trojan.Kryptik.NRT requires careful and thorough action to ensure all components of the malware are eliminated from your system. By following the steps outlined in this report and maintaining vigilant security practices, such as regularly updating your software, using strong antivirus tools, and being cautious with email attachments and downloads, you can significantly reduce the risk of future infections. Remember, prevention and prompt action are key to protecting your digital security and privacy.

Analysis Report

General information

Family Name: Trojan.Kryptik.NRT
Signature status: Hash Mismatch

Known Samples

MD5: 3a014eb7f2178de164984a352ebea87c
SHA1: 23d0f82cc478faab39c7ae18cf3488b0d3e6a29d
SHA256: 2399672C48839929E4DD63C5107D1751128F74B30EA82DCA873A8C27ED591C13
File Size: 2.28 MB, 2284032 bytes
MD5: 6190846393cd98aa2f51c19c348e2d12
SHA1: 087ee790534c370510666abaf13da923e6367a2a
SHA256: 57285041D8A1B02E1A9ED941AF255404BC2D364F5AB0109955B87B2C84580016
File Size: 1.44 MB, 1442816 bytes
MD5: 7a51090109bddaa4a6810c77606e1dd2
SHA1: b9c3f2f7df5c2e689bb60f5cff33524ae723f7b5
SHA256: 918342BE19764E845981D6967276CAB1A52FD2E904E5C37908A81CCF45D0E017
File Size: 1.84 MB, 1844224 bytes
MD5: 7bd1461aac032ef68d484cfe94c3a372
SHA1: 990e4479f1d570a94294accc29a96387d9c6358a
SHA256: C9879920E195F39BADEAF937596CE40BBED7AFB85499CA5C1ED5A240C7B69F12
File Size: 854.57 KB, 854568 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have debug information
  • File doesn't have exports table
  • File doesn't have resources
  • File doesn't have security information
  • File has TLS information
  • File is 32-bit executable
  • File is console application (IMAGE_SUBSYSTEM_WINDOWS_CUI)
  • File is either console or GUI application
  • File is Native application (NOT .NET application)
Show More
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

Windows PE Version Information

Name Value
Company Name Microsoft Corporation
File Description Windows® installer
File Version 5.0.19041.4651 (WinBuild.160101.0800)
Internal Name msiexec
Legal Copyright © Microsoft Corporation. All rights reserved.
Original Filename msiexec.exe
Product Name Windows Installer - Unicode
Product Version 5.0.19041.4651

Digital Signatures

Signer Root Status
NVIDIA Corporation DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 Hash Mismatch

File Traits

  • HighEntropy
  • Installer Manifest
  • Installer Version
  • No Version Info
  • x86

Block Information

Total Blocks: 1,194
Potentially Malicious Blocks: 342
Whitelisted Blocks: 852
Unknown Blocks: 0

Visual Map

x x x x x x 0 0 0 0 x x x x x x 0 0 x x 0 0 x 0 x x x 0 x x x x x 0 0 x x x x 0 x x x 0 0 x 0 x 0 0 0 x 0 0 x x 0 0 0 x 0 0 x 0 x x x x 0 x x 0 x x x x 0 x x x x x 0 0 0 x 0 x 0 0 x 0 x x x x x x x 0 0 x x x 0 0 0 0 0 x 0 x x x x 0 x 0 x x 0 x x x x x 0 x x 0 x x 0 x x 0 x 0 x 0 x x x x 0 x x x 0 x x x x x x x x x 0 x 0 x 0 0 x x 0 x x 0 0 x 0 x 0 x x x 0 x x 0 0 x x x x x x 0 x 0 x x x x 0 0 x 0 0 x x x x 0 x 0 x x x 0 0 x x x x 0 0 x x x x x 0 x 0 x x 0 x x 0 x x 0 0 x 0 0 0 x x x x 0 x 0 0 x 0 x x x x x x 0 x 0 x 0 x x x 0 x x 0 x 0 x x 0 x x x 0 x 0 0 x x x 0 x 0 x 0 x 0 0 x x x x 0 x x 0 x x 0 0 0 0 x 0 0 x 0 x x x x x x 0 x x 0 x x 0 x x x 0 x x x x x x x 0 x 0 0 x x 0 x x x x x x x 0 0 0 x x 0 x x 0 x x x x 0 x 0 x x x 0 x 0 x x x x x x 0 0 x x x 0 x x x x x 0 x x x 0 x x 0 x x 0 x 0 x x x x 0 x 0 x 0 0 x x x 0 x 0 0 0 x 0 x 0 x 0 0 x x x x x 0 x 0 x 0 x 0 x x x x x x x 0 x x x x 0 0 x x 0 0 x x x 0 0 x 0 x x x 0 0 x x x x x x 0 x x x 0 x x x x x 0 x x x 0 x x x x x 0 x 0 x x x x x 0 0 x x x x x x x 0 0 x 0 0 x 0 0 x 0 0 x x x 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 1 1 3 1 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 1 2 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 2 2 1 1 0 0 1 0 0 0 0 2 2 2 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 x 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 2 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block

Similar Families

  • Kryptik.NRT
  • Kryptik.NRU

Files Modified

File Attributes
c:\users\user\appdata\local\temp\4781726940\fwkdagwk.exe Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe ༭⨋ǜ RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 �"� xy(kP~�ރ(��� ��^(۴�,}��Vs}�kP~,�)����1u��,���d(B PF et��1���h�n�}(e��(e�� RegNtPreCreateKey

Windows API Usage

Category API
User Data Access
  • GetUserName
  • GetUserObjectInformation
Anti Debug
  • IsDebuggerPresent
Process Manipulation Evasion
  • NtUnmapViewOfSection
Process Shell Execute
  • ShellExecute
Syscall Use
  • ntdll.dll!NtAccessCheck
  • ntdll.dll!NtAddAtomEx
  • ntdll.dll!NtAlertThreadByThreadId
  • ntdll.dll!NtAlpcSendWaitReceivePort
  • ntdll.dll!NtApphelpCacheControl
  • ntdll.dll!NtClearEvent
  • ntdll.dll!NtClose
  • ntdll.dll!NtConnectPort
  • ntdll.dll!NtCreateEvent
  • ntdll.dll!NtCreateFile
Show More
  • ntdll.dll!NtCreateMutant
  • ntdll.dll!NtCreateSection
  • ntdll.dll!NtCreateSemaphore
  • ntdll.dll!NtDuplicateObject
  • ntdll.dll!NtDuplicateToken
  • ntdll.dll!NtEnumerateKey
  • ntdll.dll!NtEnumerateValueKey
  • ntdll.dll!NtFreeVirtualMemory
  • ntdll.dll!NtMapViewOfSection
  • ntdll.dll!NtOpenFile
  • ntdll.dll!NtOpenKey
  • ntdll.dll!NtOpenKeyEx
  • ntdll.dll!NtOpenProcessToken
  • ntdll.dll!NtOpenProcessTokenEx
  • ntdll.dll!NtOpenSection
  • ntdll.dll!NtOpenSemaphore
  • ntdll.dll!NtOpenThreadTokenEx
  • ntdll.dll!NtProtectVirtualMemory
  • ntdll.dll!NtQueryAttributesFile
  • ntdll.dll!NtQueryInformationFile
  • ntdll.dll!NtQueryInformationProcess
  • ntdll.dll!NtQueryInformationThread
  • ntdll.dll!NtQueryInformationToken
  • ntdll.dll!NtQueryKey
  • ntdll.dll!NtQueryLicenseValue
  • ntdll.dll!NtQueryPerformanceCounter
  • ntdll.dll!NtQuerySecurityAttributesToken
  • ntdll.dll!NtQueryValueKey
  • ntdll.dll!NtQueryVirtualMemory
  • ntdll.dll!NtQueryVolumeInformationFile
  • ntdll.dll!NtQueryWnfStateData
  • ntdll.dll!NtReadFile
  • ntdll.dll!NtReleaseMutant
  • ntdll.dll!NtReleaseSemaphore
  • ntdll.dll!NtReleaseWorkerFactoryWorker
  • ntdll.dll!NtRequestWaitReplyPort
  • ntdll.dll!NtSetEvent
  • ntdll.dll!NtSetInformationKey
  • ntdll.dll!NtSetInformationProcess
  • ntdll.dll!NtSetInformationVirtualMemory
  • ntdll.dll!NtSubscribeWnfStateChange
  • ntdll.dll!NtTestAlert
  • ntdll.dll!NtTraceControl
  • ntdll.dll!NtUnmapViewOfSection
  • ntdll.dll!NtUnmapViewOfSectionEx
  • ntdll.dll!NtWaitForAlertByThreadId
  • ntdll.dll!NtWaitForSingleObject
  • ntdll.dll!NtWaitForWorkViaWorkerFactory
  • ntdll.dll!NtWaitLowEventPair
  • ntdll.dll!NtWorkerFactoryWorkerReady
  • ntdll.dll!NtWriteFile
  • ntdll.dll!NtWriteVirtualMemory
  • win32u.dll!NtGdiAnyLinkedFonts
  • win32u.dll!NtGdiBitBlt
  • win32u.dll!NtGdiCreateBitmap
  • win32u.dll!NtGdiCreateCompatibleBitmap
  • win32u.dll!NtGdiCreateCompatibleDC
  • win32u.dll!NtGdiCreateDIBitmapInternal
  • win32u.dll!NtGdiCreateRectRgn
  • win32u.dll!NtGdiCreateSolidBrush
  • win32u.dll!NtGdiDeleteObjectApp
  • win32u.dll!NtGdiDoPalette
  • win32u.dll!NtGdiDrawStream
  • win32u.dll!NtGdiExtGetObjectW
  • win32u.dll!NtGdiExtTextOutW
  • win32u.dll!NtGdiFontIsLinked
  • win32u.dll!NtGdiGetCharABCWidthsW
  • win32u.dll!NtGdiGetDCDword
  • win32u.dll!NtGdiGetDCObject
  • win32u.dll!NtGdiGetDeviceCaps
  • win32u.dll!NtGdiGetDIBitsInternal
  • win32u.dll!NtGdiGetEntry
  • win32u.dll!NtGdiGetFontData
  • win32u.dll!NtGdiGetGlyphIndicesW
  • win32u.dll!NtGdiGetOutlineTextMetricsInternalW
  • win32u.dll!NtGdiGetRandomRgn
  • win32u.dll!NtGdiGetRealizationInfo
  • win32u.dll!NtGdiGetTextFaceW
  • win32u.dll!NtGdiGetTextMetricsW
  • win32u.dll!NtGdiGetWidthTable
  • win32u.dll!NtGdiHfontCreate
  • win32u.dll!NtGdiIntersectClipRect
  • win32u.dll!NtGdiQueryFontAssocInfo
  • win32u.dll!NtGdiSelectBitmap
  • win32u.dll!NtGdiSetLayout
  • win32u.dll!NtGdiStretchDIBitsInternal
  • win32u.dll!NtUserBeginPaint
  • win32u.dll!NtUserBuildHwndList
  • win32u.dll!NtUserCalcMenuBar
  • win32u.dll!NtUserCallNoParam

56 additional items are not displayed above.

Process Terminate
  • TerminateProcess

Shell Command Execution

C:\Users\Yfopmcmf\AppData\Local\Temp\4781726940\Fwkdagwk.exe

Trending

Most Viewed

Loading...